Divide the overall formation along its long axis into planes of dancers
(e.g., a 1 x 8 has eight planes; a 2 x 4 has four planes). Dancers
occupying every other plane work together to do the given call. At the end of
the given call, the dancers in one set of planes must end within their
original set of planes.

From a 2 x 4,the Once Removed dancersare in a 2 x 2

From a 1 x 8, the Once Removed dancersare in a 1 x 4

From here, the Once Removeddancers are in a Diamond(or Single 1/4 Tag)

From here, the Once Removed dancers
are in a Diamond (or Single 1/4 Tag), whereas
the Once Removed dancers are in a 2 x 2

At C2, Once Removed is primarily limited to doing simple
(i.e., non-shape-changing) calls from a 2 x 4 or a 1 x 4.
From a 2 x 2, the dancers work in a manner similar to working in
(Interlocked) Blocks [C1].

See
Block FORMATION [C1]
for a list of non-shape-changing calls from a 2 x 2.

Immediately after hearing the words 'Once Removed',
determine the wall toward which your Once Removed setup is closest,
and make a visual note of which dancers are in your Once Removed
setup so that if the call is a shape-changer you will know who should
belong in the resulting Once Removed setup.

CONTRAST THE FOLLOWING(don't panic...this usage is only done at C3 or above.)

This is the starting formationfor each of the following:

afterAs Couples Once Removed Hinge

afterOnce Removed As Couples Hinge

In the first example, As Couples precedes Once Removed, hence you
must first establish who is Couples with whom
( and
act as one dancer;
and
act as one dancer, etc.) and then work Once Removed (hence
is working with
).

In the second example, Once Removed precedes As Couples, hence you
must first establish who is in your Once Removed setup
( , ,
, and
are in one setup;
, ,
, and
are in the other)
and then work As Couples (hence
is a Couple working with Couple
.).